Popular Abstract in Swedish Syftet med avhandlingen var att öka förståelsen för socialt stöd för fysisk aktivitet bland ungdomar, då det råder motstridiga uppgifter när det gäller betydelsen av socialt stöd. Tre empiriska studier ingår i avhandlingen och samtliga problematiserar kring betydelsen av det sociala stödet för fysisk aktivitet bland ungdomar under gymnasietiden. Studie I är en kvantitThe aim of the present thesis was to enhance our understanding of social support for physical activity among adolescents. Earlier findings show inconsistent results with regard to the importance of social support. The present thesis includes three empirical studies examining adolescents (16-18 years) during their years in high-school. Study I was a cross-sectional quantitative study that concluded

Biomass or bioenergy is attracting growing attention as a sustainable and renewable energy source, which is abundant and available around the world. There are many studies on bioenergy potentials with estimates ranging from less than 100 EJ/yr to more than 500 EJ/yr in 2050. Some studies indicate that by 2100 more than 1000 EJ/yr is conceivable. To comprehend the magnitude of the estimates, the wo

This anthology comprises thirteen chapters exploring and explaining informatics at Lund University. The book represents several perspectives and views on the subject of informatics held by researchers at the Informatics Department, and also how the subject has evolved and developed over the years.The central theme is that the design of information systems links social and organisational perspectiv

Theoretically, electron microscopy and scanning probe microscopy offer information on a scale beyond the optical microscope. However, the quality of the micrograph and the obtained information is limited by the sample preparation. Each sample has its own characteristics that need special precautions, meaning that sample preparation is a continuously developing science. In this thesis several micro

Vi har under kursen Molekylär Cellbiologi för Ekosystemvetare vid LTH undersökt studenternas förmåga att bedöma muntliga projektredovisningar och jämfört den med lärarnas. Under kursen genomförde studenterna ett projekt där en muntlig gruppredovisning, med efterföljande kamratdiskussion och försvar, bedömdes och poängsattes av en opponerande studentgrupp och ett lärarlag. Vår undersökning visade a

Biometric identification is an important security application that requires non-intrusive capture and real-time processing. Recently, identification by vein patterns has been suggested as a promising alternative. In this paper we study the potential of Cellular Neural Networks implemented on a Field-Programmable Gate Array to handle the person identification based on hand veins in real time. With

Individual energy turnover rates can vary remarkably, even within a species. In this thesis I study the causes and consequences of this pronounced variation and show that individual energy turnover rates can be affected by a large number of factors. I here show that both the early conditions during the incubation period and prenatal levels of the hormone testosterone can have consequences on indiv

Kan civila som blivit måltavla för krigshandlingar försonas med sina före detta fiender? Denna studie analyserar muntligt gestaltade erfarenheter hos före detta lägerfångar som frihetsberövades i början av kriget i Bosnien-Hercegovina under 1990-talet och placerades i koncentrationslägerna Omarska, Keraterm och Manjaca. Efter kriget har fångarna tagit sin tillflykt till de nordiska länderna. StuIs it possible for civilians, who have been targets of war action, to reconcile with their former enemies? In this study I am analyzing the stories told by former camp-prisoners who were imprisoned at the beginning of the Bosnia-Herzegovina war in the early 1990’s. These prisoners were detained in the concentration-camps of Omarska, Keraterm and Manjača. The former prisoners took refuge in the Nor

We study how effective material parameters can be defined for Maxwell's equations when taking dispersion into account. The reasoning is based on the concept of dispersion relations, and is consequently primarily concerned with lossless media. We essentially require that the effective material parameters should produce the same dispersion relations as the heterogeneous problem, which implies the ef

This study explored (a) parents' process of changes and challenges in their patterns of daily activities after the onset of diabetes in their children; and (b) how personal gender relations can restrain or create functional strategies for managing the changes and challenges of illness. Interviews were conducted with 21 mothers and 15 fathers of 23 children with type 1 diabetes 8 to 10 months after

The direct and inverse scattering problems for a plane-stratified viscoelastic medium excited by a transient plane wave of SH or P-SV type are treated. The viscoelastic medium is characterized by two time and space dependent memory functions and a spatially dependent density. The direct and inverse problems are solved by a time-domain wave propagator method that is related to the Green functions t

Förf:s övergripande frågeställning är vilken roll psalmerna spelar för mötet mellan människors behov och kyrkans trosbudskap i sorgesituationen. Begravningsgudstjänsten ses som mötesplats mellan ”samhällsaspekten” (mindre lyckad beteckning för det existentiella) och ”kyrkoaspekten”. Evertsson har använt Göran Gustafssons enkätmaterial från 2222 begravningsgudstjänster och gjort ett urval utifrån p